Refined mesh method 에 의한 opening 주변의 강도 평가

초록

Generally, a member with holes causes stress concentration because of discontinuity of member’s shape. Stress concentration factor depends on configuration of opening, distance between holes, applied load and mesh size. Therefore, it is necessary to conduct parametric study for various configurations of holes and the applied loads to understand the stress concentration around opening edges. However, it is impossible to standardize parametric study results in real ship model because of structural configuration and complexity of structural arrangement. In this study, refined mesh method was introduced and stress influence factor was gained from this method. Using this method, it is possible to know stress results by simple calculation